surefire-plugin执行测试用例的顺序是什么？

Question

based on Does Maven Surefire execute test cases sequentially by default? , I know that the surefire execute test cases sequentially, in other words, One by One.

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I want to know which test cases executed first and which next, Through output information of surefire, I find that the order maybe random, for example:

• test

• boyTest.java

• subdir

  • girlTest.java
• parentTest.java the test directory has three test case: and the testcase execute order is girlTest.java, parentTest.java,boyTest.java

and So I want to make sure that whether the order that testCase executed is random

Answer 1

To verify that the ordering surefire used is the one you expect, run your build with debug enabled ( -x flag). Eg in my case I see the following:

mvn clean install -X | grep runOrder
   ...
<runOrder default-value="filesystem">hourly</runOrder>
[DEBUG]   (s) runOrder = hourly

By default order is not random but defined through how the file system returns the list of the tests ( filesystem in surefire terms).

There are other available orderings which you can choose through surefire.runOrder property (one of which is random ).

For more information see Surefire plugin runOrder